Hi Naohiro, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [cannot apply to v5.3-rc5 next-20190823] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Naohiro-Aota/btrfs-zoned-block-device-support/20190824-160033 config: x86_64-randconfig-g003-201933 (attached as .config) compiler: gcc-7 (Debian 7.4.0-10) 7.4.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): fs/btrfs/hmzoned.c: In function 'btrfs_get_dev_zones': >> fs/btrfs/hmzoned.c:25:8: error: implicit declaration of function 'blkdev_report_zones'; did you mean 'blkdev_nr_zones'? [-Werror=implicit-function-declaration] ret = blkdev_report_zones(device->bdev, pos >> SECTOR_SHIFT, ^~~~~~~~~~~~~~~~~~~ blkdev_nr_zones cc1: some warnings being treated as errors vim +25 fs/btrfs/hmzoned.c 18 19 static int btrfs_get_dev_zones(struct btrfs_device *device, u64 pos, 20 struct blk_zone *zones, 21 unsigned int *nr_zones, gfp_t gfp_mask) 22 { 23 int ret; 24 > 25 ret = blkdev_report_zones(device->bdev, pos >> SECTOR_SHIFT, 26 zones, nr_zones, gfp_mask); 27 if (ret != 0) { 28 btrfs_err_in_rcu(device->fs_info, 29 "get zone at %llu on %s failed %d", pos, 30 rcu_str_deref(device->name), ret); 31 return ret; 32 } 33 if (!*nr_zones) 34 return -EIO; 35 36 return 0; 37 } 38 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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